Data from the Customs and Border Patrol show that from 2000 to 2017, apprehensions dropped by 80 to 90 percent in the border zones it shared information on.

For example, there were 115,696 apprehensions in El Paso in 2000. Seven years later in 2017, there were 25,193 apprehensions. That was also the trend in San Diego. There were 151,681 apprehensions in 2000 and 26,086 apprehensions in 2017, according to the CBP data. In Yuma, there were 108,747 apprehensions in 2000 and 12,847 in 2017.

However, this claim leaves out the fact that apprehensions dropped everywhere - not just in border sectors with barriers.

There was a decrease from 1,643,679 apprehensions in 2000 to 303,916 apprehensions in 2017, which is an 82 percent decrease along the entire border.